The good news is that Shanghai has been trying to manage bike sharing by making rules.

好消息是，上海一直在试图通过制定规则来管理共享单车。

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Shanghai has a larger population than that in many other cities.

上海的人口比其他许多城市都多。

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One thing that has been scaled back in Shanghai, though, is Friday's opening ceremony.

上海世博会上有一处的开支已经缩减了，那就是周五的开幕式晚会。

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But clearly, not all Chinese are content with keeping things virtual: a doctor who runs a pregnancy helpline in Shanghai has said that half the calls she receives come from girls who met boys through the net.

ECONOMIST: Cyber-hedonism

There is not a single car plant in China, says Paul Gao, a consultant from McKinsey's Shanghai office, that has economies of scale.

ECONOMIST: Is there any point in manufacturing cars in China?

Dan Scheinman of Cisco, the world's largest maker of networking equipment, says that Shanghai, too, has achieved a critical mass in the numbers of software engineers available.

ECONOMIST: China's cup overflows; India catches the spillage